What are canon ef lenses?

Asked by: Hollie Stroman
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The EF lens mount is the standard lens mount on the Canon EOS family of SLR film and digital cameras. EF stands for "Electro-Focus": automatic focusing on EF lenses is handled by a dedicated electric motor built into the lens.

What is the difference between a Canon EF and EF-S lens?

Canon EF lenses are designed to work with full frame and APS-C DSLRs from Canon. Canon EF-S lenses have a smaller image circle that is only big enough to cover the smaller sensor found on Canon APS-C cameras. ... Because EF lenses have a larger image circle, they will cover full frame sensors and APS-C sensors.

How do I know if my Canon lens is EF?

You can recognize EF lenses by its red dot, where you line up the dot on the lens mount to a similar looking one on the camera body. However, if your Canon camera lens has both a red dot and a white square to line up the body to when mounting the lens, then it is an EF-S lens. EF-S is stands for 'short back focus'.

Do Canon EF lenses fit EOS?

EF. The original EOS camera system was introduced in 1987. ... All EF lenses are compatible with every EOS camera ever produced, including the new EOS M series when used with the EF to EOS M Mount adapter.

Is Canon EOS and EF the same?

In short, EF refers to the mount type for Canon lenses, while EOS is a name given by Canon to the series of bodies that used the Electro-Optical System. They are entirely different things.

My 5 Favourite Canon EF Lenses (with photo examples)

40 related questions found

Does Canon EF fit EFS?

1 Answer. The short answer to your question is yes, an EF lens can be used on a crop-sensor (EF-S) Canon camera. The longer answer is that EF-S lenses are designed for crop-sensor lenses, the 's' denotes a smaller image circle, but it's otherwise a compatible mount.

Is EF full-frame?

EF lenses are produced for Canon's full-frame DSLRs. EF-S lenses are produced for Canon's APS-C DSLRs. While there is a wide range of EF lenses, many of them are designed with advanced amateurs and professionals in mind. EF-S lenses, on the other hand, are designed to take advantage of the smaller APS-C sensor size.

What does RF stand for Canon?

In truth, while the EOS R was being developed, it was tagged R for Revert or Reborn, but when it went public and in production, Canon adapted Re-Imagined for the meaning of the R. So, EOS R is Electro-Optical System Re-Imagined and RF is Re-Imagined Focus.

Can I use an EF lens on a rebel?

Canon Rebel models are compatible with all Canon EF and EF-S lenses. ... While more expensive than consumer-grade lenses, these are compatible with Canon Rebel cameras and all use the Canon EF mount. MM – millimeter – The focal length of lenses is measured in millimeters.

Can the R5 use EF lenses?

Thankfully, the answer is YES! You can use EF lenses on the R5 and R6, although you will need to buy one of Canon's EF-RF mount adapters to do so. ... Then there's an adapter that includes a user programable ring around it, called the control ring.

What is the difference between RF and EF lenses?

RF mount is the new mount from Canon that is used on their lineup of full frame mirrorless cameras. EF mount is the older mount used by Canon in their Film SLR and Digital DSLR cameras (cameras with mirrors in them).

What does EOS stand for Canon?

2/19/15. EOS stands fo Electro-Optical System. But like the other "names" is just a brand name by Canon. Powershot means nothing in itself but generally it is Canon's line of P&S cameras. Numbers in the name just signify a difference in features and newer models.

What cameras use EF lenses?

They include the EF mount, for use with Canon's full-frame (24 x 36mm) and APS-C (22.3 x 14.9mm) format DSLRs, the EF-S mount for use exclusively with Canon's APS-C format DSLRs, and the EF-M mount, designed for use exclusively with Canon EOS M mirrorless cameras.

Which one is better STM or USM?


USM lenses are much faster than STM lenses, which makes USM a better choice for action photographers, street photographers, and wildlife photographers. USM lenses also offer smoother manual focusing, given the mechanical connection between the focus ring and the focusing mechanism.

Is a DSLR better than a mirrorless camera?

Mirrorless cameras have the advantage of usually being lighter, more compact, faster and better for video; but that comes at the cost of access to fewer lenses and accessories. For DSLRs, advantages include a wider selection of lenses, generally better optical viewfinders and much better battery life.

Do full frame cameras need different lenses?

Full frame cameras should only use full frame lenses. Crop frame sensor lenses are designed specifically to match the smaller size of crop sensors. The image coverage on these lenses is designed for a sensor smaller than full frame.

Do all Canon lenses fit?

If you bought a Canon EOS camera, you knew that any of the EF lens range would fit your camera. ... In fact, it's still true – all EF lenses fit all EOS cameras, one way or another.

Do EF lenses work on T8i?

1. Canon EF-S 10-18mm f/4.5-5.6 IS STM Lens. The Canon EF-S line of lenses is designed to work with Canon APS-C sensors like the Rebel T8i. This means you can expect this affordable wide-angle lens to work correctly with your camera.

Does Canon T7 use EF lenses?

Canon EF 24-70mm f/2.8L

With its 24.1 MP CMOS sensor, and a variety of good lenses that can go with the camera, no wonder it's a favorite by novice to expert photographers. What lenses are compatible with the Canon Rebel T7? This camera is compatible with EF and EF-S lenses.

Is Canon going to stop making EF lenses?

It's true, Canon has recently discontinued select EF lenses in our range. However, this is a process of series optimization, not an indication of us abandoning EF lenses.

Are RF lenses better?

Canon says that RF lenses are superior to conventional lenses when it comes to minimizing aberrations caused by refraction, especially at the outer edges of photos.

Can you use Canon EF lenses on mirrorless?

The short answer is: Yes, you can use Canon EF/EF-S lenses on mirrorless Canon cameras but you will need to use an adaptor.

What is the difference between EF and USM lenses?

For example, there are two Canon 24-70mm f/2.8L lenses: the first one is the Canon EF 24-70mm f/2.8L USM, and the other one is Canon EF 24-70mm f/2.8L II USM. The only difference in the name of the lenses is the “II” designation of the second lens, which means it is the newer, updated version.

Can Canon 90D use EF lenses?

Whether you are about to own it, or already own it and want to upgrade your lens, you've got to figure out what's the best 90D lens to have. You can use either EF or EF-S lenses, but the EF-S lenses are made specifically for APS-C Canon's like your 90D. It's a remarkable camera, for sure.

What is the difference between Canon EF and FD lenses?

FD is for Canon Manual focus cameras (F, A, and T series). Hasn't been made in 20 years or so. Uses mechanical coupling for aperature, does not have autofocus. Canon switched to EF lens mount when they went auto-focus.